Toyota Tacoma Dual Battery Kit Heavy Duty Auxiliary Isolator 12V 140A True® Brand


The True® dual battery kit is a universal dual battery management system fit for Toyota Tacoma trucks.  This is a complete dual battery kit with an installation manual and wiring diagram.
SKU: DBK12LARGE-AU-1 Category:


Product features

  • Toyota Tacoma dual battery kit designed technology
  • Voltage capacity 12 with Amper capacity of 140.
  • Featuring a voltage-sensitive relay that detects and automatically switches the charging based on voltage level.
  • The starting battery is the priority in charging.
  • All True® products are 100% waterproof and anti-corrosion terminals.
  • The latest Smart Isolator – SBI-19 is built with heat resistance up to 130 deg.
  • The best dual battery kit for the Tacoma model is the vehicle’s warranty friendly since it does not require an alternator connection.
  • Full warranty with superb tech support
  • Proudly Made in USA – Free Delivery via first USPS class mail

Tacoma dual battery kit  consists of

  •  SBI-19 True® Smart battery isolator
  •  Flex cable with durable copper cable lugs
  •  Black  Flex cable with durable  copper cable lugs
  •  Brass alloy battery terminal ends
  •  Crimp-on tinned copper cable lugs
  •  Adhesive lined shrink tube
  •  A booklet containing wiring installation booklet with diagram

All the TRUE® dual battery kits for Toyota® Tahoma have originally designed cables that employ tested adhesive to maintain waterproof and corrosion-proof.


multi battery isolator diagram​ by True Technology


Car accessories testimonials


(These videos are not endorsed or represented as an “Official Installation video” by True Amalgamated and True Amalgamated accepts no responsibility for its content. It is produced by the end-user as stated. Follow entirely at your own risk.)

Dual battery kit Tacoma setup video

1st and 2nd gen dual battery kit for Tacoma

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